The Mouth Is the Orifice of the Digestive System. This means that what is going on with the tongue gives you a pretty good idea of what is going on in the gut. How well we digest food and drink shows up on the tongue. This is visible in the tongue coating and in the tongue color.
Primary groups: people who are emotionally close, know one another well and seek one another's company.he major characteristics of primary and secondary groups are with primary groups they are more close together like in best friends and all. Secondary groups are not that clos â¦ e and not together all the time. 14 people found this useful.
Difference Between Primary Research and Secondary Research. Primary research and secondary research are two terms that are to be understood differently because there exists a difference between the two concepts and methods. First let us comprehend the major difference between primary and secondary research. Primary research is conducted with the help of the primary sources available whereas secondary research is conducted on the basis of some data collected from someone who had got it from some source.